Many of the coolest athletes on the planet weren't always quite as cool. You might say it took Tom Brady a while to grow into his lean, athletic, model-dating persona.

Without further delay, a look at some of the funniest (and OK, sometimes cutest) photos from sports' biggest stars -- before they were stars.

Funniest Pictures Of Athletes As Kids

Funniest Pictures Of Athletes As Kids
 

Funniest Pictures Of Athletes As Kids

Who am I?

Anna Kournikova
 

Anna Kournikova

This photo gives hope to little girls everywhere -- even if your parents make you wear unsightly hair accessories, you can still turn out to be a gorgeous celebrity athlete.

Funniest Pictures Of Athletes As Kids
 

Funniest Pictures Of Athletes As Kids

Who am I?

Tom Brady
 

Tom Brady

Brady gives hope to awkward kids and teenagers everywhere with his transformation. Though we're still wondering how his baseball career might have panned out.

Funniest Pictures Of Athletes As Kids
 

Funniest Pictures Of Athletes As Kids

Who am I?

Tiger Woods
 

Tiger Woods

A star long before he was the best golfer in the world, there's no shortage of pictures featuring Tiger in the most stylish kids' golf wear of the 80's.

Funniest Pictures Of Athletes As Kids
 

Funniest Pictures Of Athletes As Kids

Who am I?

Derek Jeter
 

Derek Jeter

Pre-pinstripes, and with those adorable curls, who knew this harmless looking ballplayer would become one of the most famous Yankees of all time.

Funniest Pictures Of Athletes As Kids
 

Funniest Pictures Of Athletes As Kids

Who am I?

David Beckham
 

David Beckham

It's not too surprising that Beckham was already posing with trophies -- and rocking what looks like a pre-mullet -- as a kid. Looks like he was born a charmer.

Funniest Pictures Of Athletes As Kids
 

Funniest Pictures Of Athletes As Kids

Who am I?

Hulk Hogan
 

Hulk Hogan

Before the tan, the bandanna and the epic moustache, he was simply Terry Gene Bollea from Augusta, Georgia. And oh so groovy.

Funniest Pictures Of Athletes As Kids
 

Funniest Pictures Of Athletes As Kids

Who am I?

Hope Solo
 

Hope Solo

Talented and tough, little Hope Solo grew up learning soccer from her father, Jeffrey. He was a Vietnam veteran, and sadly died of heart failure in 2007.

Funniest Pictures Of Athletes As Kids
 

Funniest Pictures Of Athletes As Kids

Who are we?

Venus & Serena Williams
 

Venus & Serena Williams

The duo knew how to put on a show for the cameras before they put on a show for tennis crowds everywhere.

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